Today, the maximum buying rates at commercial banks of Yerevan were 408,5 drams for 1 dollar, 543drams for 1 EUR and 12,4 drams for 1 Russian ruble. The minimum selling rates stood at 410 drams for 1 dollar, 546 drams for 1 EUR and 12,5 drams for 1 Russian ruble . -0-